FIA is a Metaverse protocol with a concise blockchain design. Unlike Bitcoin and Ethereum, which store large amounts of data that continue to grow over time, Fia's blockchain remains a consistent size of about 22kb, equivalent to the size of an image. This ensures that participants can quickly synchronize and verify the network. Fia aims to build a Metaverse blockchain infrastructure that is device-agnostic and capable of connecting everything through the internet. By incorporating the concept of zero-knowledge proof, Fia Protocol strives to create the most advanced Metaverse blockchain.